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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HDFS-7745) HDFS should have its own daemon command and not rely on the one in common
Date Fri, 06 Feb 2015 22:01:35 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14310010#comment-14310010
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Allen Wittenauer edited comment on HDFS-7745 at 2/6/15 10:00 PM:
-----------------------------------------------------------------

My plan is to mark all of the daemon shell scripts in sbin as deprecated: HDFS-7322, YARN-2796,
... and looks like I'm missing one for MR.

In any case, this would make the hdfs command itself be the official way to launch daemons.
 The dependencies on common's shell infrastructure (hadoop-functions, etc) would remain.

With the commit of HADOOP-11485, there is very little HDFS-specific bits still remaining in
common that are actually used.  (The big one being HADOOP_HDFS_HOME resolution, but that one
pretty much has to stay there.)  

The only thing really able to be moved would be the HDFS definitions in hadoop-env.sh to hdfs-env.sh.
 (which is already supported by the code)


was (Author: aw):
My plan is to mark all of the daemon shell scripts in sbin as deprecated: HDFS-7322, YARN-2796,
... and looks like I'm missing one for MR.

In any case, this would make the hdfs command itself be the official way to launch daemons.
 The dependencies on common's shell infrastructure would remain.

> HDFS should have its own daemon command  and not rely on the one in common
> --------------------------------------------------------------------------
>
>                 Key: HDFS-7745
>                 URL: https://issues.apache.org/jira/browse/HDFS-7745
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Sanjay Radia
>
> HDFS should have its own daemon command and not rely on the one in common.  BTW Yarn
split out its own daemon command during project split. Note the hdfs-command does have --daemon
flag and hence the daemon script is merely a wrapper. 



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